[TOPBLOCKER] /usr/lib/arm-linux-gnueabihf/indicator-network/indicator-network-service:indicator-network-service: pthread_mutex_lock.c:80: __pthread_mutex_lock: Assertion `mutex->__data.__owner == 0' failed.

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding indicator-network. This problem was most recently seen with version 0.5.1+14.10.20141015-0ubuntu1, the problem page at https://errors.ubuntu.com/problem/ecc14b5d54f3e0a0f1720cad0c623f81c8a16988 contains more details.

steps to reproduce: (need to trigger race condition)
1. pull down network indicator
2. toggle flight mode on and off quickly a few times
3. click sim card 1 and 2
4. toggle flight mode
5. swipe up close indicators
6. repeat steps 1-5 until crash occurs

expected results:
no crash happens

actual results:
Bluetooth indicator blinks (appear and disappear) in indicator bar at top of screen, and network indicator crashes.

additional info:
eventually the bluetooth indicator appears stable in the indicators at the top of the screen.

[Antti Kaijanmäki (kaijanmaki)]

Looking at the stacktrace, the assertion error happens inside dbus-cpp worker thread that has called core::dbus::Bus::run().

Some quick googling:
http://stackoverflow.com/questions/1105745/pthread-mutex-assertion-error

[Manuel de la Peña (mandel)]

https://bugs.launchpad.net/ubuntu/+source/location-service/+bug/1337613/comments/2

[Thomas Voß (thomas-voss)]

To clarify: The message router likely resolves to an already dead object, and the access to the associated mutex is undefined behavior as the member has been freed when the respective object died away before. I'm proposing a change to dbus-cpp to robustify handling of such situations. However, downstream projects should make sure that they clean up correctly dynamically created objects.

[Antti Kaijanmäki (kaijanmaki)]

i-network needs a rebuild as well.

[Pat McGowan (pat-mcgowan)]

Added missing date tag

[Olli Ries (ories)]

might be related to https://bugs.launchpad.net/ubuntu/+source/urfkill/+bug/1388065

[Antti Kaijanmäki (kaijanmaki)]

based in the ofono and urfkill bugs linked to the #1388065 I would say these are not related.